Muhyo and Roji visit the home of Shiratori Aya, a client who says a black shadow has been playing her piano at 2:00 AM every night. Muhyo concludes that the shadow is a vengeful spirit born from countless people who envy Aya's talent, but in fact... Later, a package arrives at the bureau for Roji, containing a "magic-sealing pen" and an invitation to take an exam for a promotion to first-class secretary. Then Nana enters with a photo she took of a spirit on a pedestrian bridge...
With the next blow, you'll 
become part of Hell's soil.
بالضربة التالية، ستصبح جزءاً من أرض الجحيم
Con el próximo golpe,
serás parte del suelo del infierno.
Con il prossimo colpo,
diventerai parte del suolo dell'Inferno.
Com o próximo golpe, você vai
virar parte do solo do Inferno.